- Alternative spelling of
- (transitive, idiomatic, informal) To arrest.
- The guys who robbed the bank last week have finally been run in.
- (transitive, idiomatic, UK) To drive a car carefully when it is new so the engine is not damaged in any way.
- I have to drive slowly for the first 1,000 miles to run the engine in.
- (rugby) To score (a try)
2011 September 16, Ben Dirs, “Rugby World Cup 2011: New Zealand 83-7 Japan”, BBC Sport:
- Toeava went over unopposed to stretch his side's lead but Japan got on the scoreboard on 56 minutes, wing Hirotoki Onozawa intercepting an attempted offload from Slade, who had a rather flaky game, and running in from the All Blacks' 10m line.
- The "arrest" sense is most commonly found in the passive form.